Multiple U.S. Warehouse LocationsBroken ApexFree shipping on qualified orders over $100*
The Ferrea valve spring kit for Mitsubishi Eclipse 4G63 turbo applications is a dual-spring replacement set designed to strengthen valve control in boosted engines. This kit upgrades the stock springs with a dual arrangement to improve stability under boost and repetitive high-load cycles, giving tuners a dependable valvetrain component when maintaining consistent valve motion is essential.
Ferrea Mitsubishi Eclipse 4G63 Turbo Dual Spring Kit
